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Historical evolution of technological diversification |
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| Authors: | John Cantwell Giovanna Vertova |
| Institution: | a Department of Economics, University of Reading, Reading, UK b Rutgers Business School, 111 Washington Street, Newark, NJ 07102-3027, USA c Department of Economics, University of Bergamo, Via dei Caniana 2, I-24127 Bergamo, Italy |
| Abstract: | A positive relationship exists between national technological size and technological diversification across fields of innovative activity. This paper shows how the nature of this relationship has changed historically. There has been a downward structural shift in the cross-country size-diversification frontier since 1965—for any given size countries have become less diversified or more narrowly concentrated in their technological specialisation. One explanation is that international technology sourcing by MNEs has led locations to focus on what they do best. A supporting factor may be a rise in technological interrelatedness, which encourages focus upon a specific selection of complementary combinations. |
| Keywords: | National innovation systems Technological diversification Patent statistics Internationalisation of technology |
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